Aero Precision 308 Black Nitride Bolt Carrier Group
Manufactured in the USA by Aero Precision
Aero Precision 308 Black Nitride bolt carrier group (M5 BCG) is the perfect firing mechanism for your big-bore rifle build. The billet carrier is machined from 8620 steel, case hardneed, features both a properly staked gas key and forward assist serrations. The high pressure .308 bolt is machined from 9310 steel, case hardneed, shot peened, HPT/MPI tested, and designed to function with .308 based cartridges such as .308, 6.5 Creedmoor, and .338 Federal. The extractor is machined from 4340 steel with double o-rings and springs. All of Aero Precision Bolt Carrier Groups feature a laser engraved Aero logo, and offered in three finishes;phosphate, black nitride, and nickel boron (performed by Fail Zero Coatings). All Bolt Carrier Groups come standard with bolt carrier, complete bolt, firing pin, cam and retaining pins. We recommend this black nitride version for smooth error free operation while maintaining a traditional appearance of any “black rifle.”
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Arm or Ally is proud to team up with Aero Precision to bring you some of the finest core AR10 components available at affordable prices. Be sure to check out our Upper Receivers and barrels by Ballistic Advantage. What’s more? Ballistic Advantage guarantees sub-MOA accuracy!
Manufacturer: Aero Precision
Material: 8620 (Carrier); 9310 (Bolt); 4340 (Extractor)
Finish: Black Nitride
Compatibility: The .308 family of cartridges.
Weight: 17.9 oz